superkeyor/ffmpeg-commands.sh

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ffmpeg commands.

Raw

ffmpeg-commands.md

To extract the sound from a video and save it as MP3:

ffmpeg -i <video.mp4> -vn .mp3

To convert frames from a video or GIF into individual numbered images:

ffmpeg -i <video.mpg|video.gif> <frame_%d.png>

To combine numbered images (frame_1.jpg, frame_2.jpg, etc) into a video or GIF:

ffmpeg -i <frame_%d.jpg> -f image2 <video.mpg|video.gif>

To quickly extract a single frame from a video at time mm:ss and save it as a 128x128 resolution image:

ffmpeg -ss mm:ss -i <video.mp4> -frames 1 -s <128x128> -f image2 <image.png>

To trim a video from a given start time mm:ss to an end time mm2:ss2 (omit the -to flag to trim till the end):

ffmpeg -ss mm:ss -to mm2:ss2 -i <video.mp4> -codec copy <output.mp4>

To convert AVI video to MP4. AAC Audio @ 128kbit, h264 Video @ CRF 23:

ffmpeg -i <input_video>.avi -codec:audio aac -b:audio 128k -codec:video libx264 -crf 23 <output_video>.mp4

To remux MKV video to MP4 without re-encoding audio or video streams:

ffmpeg -i <input_video>.mkv -codec copy <output_video>.mp4

To convert MP4 video to VP9 codec. For the best quality, use a CRF value (recommended range 15-35) and -b:video MUST be 0:

ffmpeg -i <input_video>.mp4 -codec:video libvpx-vp9 -crf <30> -b:video 0 -codec:audio libopus -vbr on -threads <number_of_threads> <output_video>.webm

-----------------------------------------------------------------------------

To join/concatenate two mp4 videos (use double-quotes in Windows):

http://www.kolor.com/wiki-en/action/view/Autopano_Video_-_Concatenate_several_mp4

ffmpeg -i one.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts one.ts ffmpeg -i two.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts two.ts ffmpeg -i "concat:one.ts|two.ts" -c copy -bsf:a aac_adtstoasc combined.mp4

cleanup

rm -f one.ts two.ts

To print file metadata:

ffmpeg -i path/to/file.ext

To convert a video to compatible HTML5 video format (mp4): (https://gist.github.com/yellowled/1439610)

ffmpeg -i infile.ext -acodec aac -strict experimental -ac 2 -ab 128k -vcodec libx264 -preset slow -f mp4 -crf 22 outfile.mp4

To convert all m4a files to mp3:

for f in *.m4a; do ffmpeg -i "$f" -acodec libmp3lame -ab 320k "${f%.m4a}.mp3"; done

To generate a 10-second audio clip:

-ss : start time

-t : seconds to cut

-autoexit : closes ffplay as soon as the audio finishes

ffmpeg -ss 00:34:24.85 -t 10 -i path/to/file.mp4 -f mp3 pipe:play | ffplay -i pipe:play -autoexit

To generate a 5-second video clip (from the beginning "-ss 0" of video):

-ss : start time of clip (position)

-t : duration of clip

ffmpeg -i video.mp4 -ss 0 -t 5 -vcodec copy -acodec copy clip.mp4

Get media file info

ffmpeg -i video.avi

Turn X images to a video sequence

ffmpeg -f image2 -i image%d.jpg video.mpg

Turn a video to X images

ffmpeg -i video.mpg image%d.jpg

Encode a video sequence for the iPpod/iPhone

ffmpeg -i source_video.avi input -acodec aac -ab 128kb -vcodec mpeg4 -b 1200kb -mbd 2 -flags +4mv+trell -aic 2 -cmp 2 -subcmp 2 -s 320x180 -title X final_video.mp4

Extract 2 images for each second of the video starting at 30-seconds and ending 40-seconds

ffmpeg -i video.mp4 -r 2 -ss 00:00:30 -t 00:00:10 img%d.jpg

Extracting sound from a video, and save it as Mp3

ffmpeg -i source_video.avi -vn -ar 44100 -ac 2 -ab 192 -f mp3 sound.mp3

Convert a wav file to Mp3

ffmpeg -i son_origine.avi -vn -ar 44100 -ac 2 -ab 192 -f mp3 son_final.mp3

Crop an audio file

"`-acodec copy` is to keep the original sound, `-ss 00:00:25` is to tell where

to start cropping and `-t 00:02:00` is the length of the cropped output file.

ffmpeg -i input.mp3 -acodec copy -ss 00:00:25 -t 00:02:00 output.wav

Crop a video file

The only change in this command is that you need to define the video encoder

when cropping video files, the usual option is "-vcodec copy" to keep

the original video.

ffmpeg -i input.avi -vcodec copy -acodec copy -ss 00:00:25 -t 00:02:00 output.flv

Convert .avi video to .mpg

ffmpeg -i video_origine.avi video_finale.mpg

Convert .mpg to .avi

ffmpeg -i video_origine.mpg video_finale.avi

To convert the entire video to GIF, use the following command:

ffmpeg -i small.mp4 small.gif

To convert a gif to video:

ffmpeg -f gif -i animation.gif animation.mp4

To convert just a portion of a video clip to GIF, use the following command:

ffmpeg -t 3 -ss 00:00:02 -i small.webm small-clip.gif

Mix a video with a sound file

ffmpeg -i son.wav -i video_origine.avi video_finale.mpg

Convert .avi to .flv

ffmpeg -i video_origine.avi -ab 56 -ar 44100 -b 200 -r 15 -s 320x240 -f flv video_finale.flv

Convert .avi to dv

ffmpeg -i video_origine.avi -s pal -r pal -aspect 4:3 -ar 48000 -ac 2 video_finale.dv

Or:

ffmpeg -i video_origine.avi -target pal-dv video_finale.dv

Convert .avi to mpeg for dvd players

ffmpeg -i source_video.avi -target pal-dvd -ps 2000000000 -aspect 16:9 finale_video.mpeg

Compress .avi to divx

ffmpeg -i video_origine.avi -s 320x240 -vcodec msmpeg4v2 video_finale.avi

Compress Ogg Theora to Mpeg dvd

ffmpeg -i film_sortie_cinelerra.ogm -s 720x576 -vcodec mpeg2video -acodec mp3 film_termin.mpg

Compress .avi to SVCD mpeg2 (NTSC format)

ffmpeg -i video_origine.avi -target ntsc-svcd video_finale.mpg

Compress .avi to SVCD mpeg2 (PAL format)

ffmpeg -i video_origine.avi -target pal-svcd video_finale.mpg

Compress .avi to VCD mpeg2 (NTSC format)

ffmpeg -i video_origine.avi -target ntsc-vcd video_finale.mpg

Compress .avi to VCD mpeg2 (PAL format)

ffmpeg -i video_origine.avi -target pal-vcd video_finale.mpg

Multi-pass encoding with ffmpeg

ffmpeg -i fichierentree -pass 2 -passlogfile ffmpeg2pass fichiersortie-2

Convert to wmv

ffmpeg -i winter_clip.mov -vcodec wmv2 -b 12000k -ar 44100 -ab 192k -ac 2 -y -s 720x406 output.wmv

Write metadata `title` to mp4 clip (without re-encoding)

ffmpeg -loglevel quiet -v 0 -i clip.mp4 -metadata title="jon test clip" -acodec copy -vcodec copy -copyts cliptitle.mp4

Gather stream information and print it in JSON format

ffprobe -loglevel quiet -show_format -show_streams -i clip.mp4 -print_format json

Transcode to WebM with ffmpeg (http://paulrouget.com/e/funwithwebm/)

ffmpeg -i girltalk.mp4 -f webm -vcodec libvpx -acodec libvorbis -aq 90 -ac 2 girltalk.webm

Convert to ipad

ffmpeg -y -i input.avi -acodec aac -ar 48000 -ab 128k -ac 2 -s 1024x768 -vcodec libx264 -b 1200k -flags +loop+mv4 -cmp 256 -partitions +parti4x4+partp8x8+partb8x8 -subq 7 -trellis 1 -refs 5 -coder 0 -me_range 16 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -bt 1200k -maxrate 1200k -bufsize 1200k -rc_eq 'blurCplx^(1-qComp)' -qcomp 0.6 -qmin 10 -qmax 51 -qdiff 4 -level 30 -aspect 16:9 -r 30 -g 90 -async 2 output.mp4

Create a single image video with audio

ffmpeg -loop 1 -i image.png -i sound.mp3 -shortest video.mp4

Find all .flv files in a dir, grab the first frame and make a jpg.

for f in *.flv; do ffmpeg -y -i "$f" -f image2 -ss 10 -vframes 1 -an "${f%.flv}.jpg"; done

Convert .wma files to .ogg with ffmpeg

find -name '*wma' -exec ffmpeg -i {} -acodec vorbis -ab 128k {}.ogg ;

Synchronize audio with video by adding a 0.5 second (1/2 second) delay to the audio stream without re-encoding the file (https://alien.slackbook.org/blog/fixing-audio-sync-with-ffmpeg/):

ffmpeg -i out_of_sync_file.mp4 -itsoffset 0.5 -i out_of_sync_file.mp4 -map 0:0 -map 1:1 -acodec copy -vcodec copy synced_file.mp4

Removing syncronization problems between audio and video

This assumes that there is a 10.2 sec delay between the video and the

audio (delayed). To extract the original video into a audio and video

composites look at the command on extracting audio and video from a movie.

ffmpeg -i source_audio.mp3 -itsoffset 00:00:10.2 -i source_video.m2v target_video.flv

Cut Out A Piece Of Film From A File. Choose an arbitrary length and starting time.

ffmpeg -vcodec copy -acodec copy -i orginalfile -ss 00:01:30 -t 0:0:20 newfile

Extract Audio And Video From A Movie

Rips the audio and video stream of a movie. The two streams are stored separately.

ffmpeg -i source_movie.flv -vcodec mpeg2video target_video.m2v -acodec copy target_audio.mp3

Rotate a video file 90 clockwise (http://stackoverflow.com/a/9570992):

ffmpeg -i in.mov -vf "transpose=1" out.mov

ffmpeg, libx264 and presets (for web encoding)

Here the source can be either mp4 or some other file format as FLV for instance

-- http://www.stoimen.com/blog/2010/10/26/ffmpeg-libx264-and-presets/

ffmpeg -i source.mp4 -acodec libfaac -ab 128k -ac 2 -vcodec libx264 -vpre normal -threads 0 -crf 22 output.mp4

Convert Adobe Flash FLV Files to MP4 Files

http://www.guguncube.com/1103/ffmpeg-convert-adobe-flash-flv-files-to-mp4-files

Simple Conversion of FLV to MP4 using FFMPEG

find . -regextype posix-extended -iregex "..avi|..flv" -type f | while IFS= read -r file; do fn="${file}"; echo "###$fn###"; dest="${fn%.*}.mp4"; echo "###$dest###"; if [ -f "$dest" ];then rm "$dest"; fi; ffmpeg -nostdin -v 0 -i "$fn" -acodec copy -vcodec copy -copyts "$dest"; done;

Convert FLV to MP4 through container copy

NOTE: only works if video content is H264 and audio AAC or MP3

ffmpeg -i input.flv -acodec copy -vcodec copy -copyts output.mp4

Transcode FLV to MP4

ffmpeg -i input.flv -copyts output.mp4

Re-encode Audio

ffmpeg -i input.ext -vcodec copy -acodec libfaac -ab 128k -copyts output.mp4

Copy Directory FLV TO MP4 (Version 1)

for f in .flv; do fn="${f%.}"; ffmpeg -i "$f" -acodec copy -vcodec copy -copyts "$fn.mp4"; done;

Copy Directory FLV TO MP4 (Version 2)

for f in *.flv; do a=$(echo $f|sed -e 's/.flv/.mp4/ig'); echo $a; ffmpeg -i "$f" -acodec copy -vcodec copy -copyts "$a"; done;

It you want particular prefixes for the Android, something like:

ffmpeg -i source-video.avi -s 480x320 -vcodec mpeg4 -acodec libfaac -ac 1 -ar 16000 -r 13 -ab 32000 -aspect 3:2 output-video.G1.mp4

My ffmpeg didn't want -aspect 3:2 and you can omit it.

Convert FLV files in tree to mp4 -- preserve already existing files and MP4

find . -name "*.flv" -type f -exec ffmpeg -n -i '{}' -acodec copy -vcodec copy -copyts '{}.mp4' ;

convert directory tree from AVI, FLV to mp4

find . -regextype posix-extended -iregex "..avi|..flv" -type f -exec ffmpeg -n -i '{}' '{}.mp4' ;

-regextype posix-extended -iregex "..txt|..mp4"

for f in ; do fn="${f%.}";echo "fn=$fn,f=$f"; done; for f in .flv.mp4; do fn="${f%.}";echo "$fn,f=$f"; done;

Remove FLV.MP4 double extensions

for f in .flv.mp4; do fn="${f%.}";fn="${fn%.*}";mv "$f" "$fn.mp4"; done;

Converts flac files to mp3 (shell)

for FILE in .flac; do ffmpeg -i "$FILE" -ab 320k "${FILE%.}.mp3"; done

How to encode video in H264 format

We have successfully been using ffmpeg/libx264 with two pass encoding using

the following commands

http://h264.code-shop.com/trac/wiki/Encoding#HowtoencodevideoinH264format

Ffmpeg/x264 (profile High, level 3.0) (latest versions of x264)

infile="video.avi" tmpfile="video_tmp.mp4" outfile="video.mp4" options="-vcodec libx264 -b 512k -flags +loop+mv4 -cmp 256 -partitions +parti4x4+parti8x8+partp4x4+partp8x8+partb8x8 -me_method hex -subq 7 -trellis 1 -refs 5 -bf 3 -flags2 +bpyramid+wpred+mixed_refs+dct8x8 -coder 1 -me_range 16 -g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -qmin 10 -qmax 51 -qdiff 4"

ffmpeg -y -i "$infile" -an -pass 1 -threads 0 $options "$tmpfile" ffmpeg -y -i "$infile" -acodec libfaac -ar 44100 -ab 96k -pass 2 -threads 0 $options "$tmpfile" qtfaststart "$tmpfile" "$outfile"

Ffmpeg/x264 (profile High, level 3.0) (older versions)

options="-vcodec libx264 -b 512k -bf 3 -subq 6 -cmp 256 -refs 5 -qmin 10 -qmax 51 -qdiff 4 -coder 1 -loop 1 -me hex -me_range 16 -trellis 1 -flags +mv4 -flags2 +bpyramid+wpred+mixed_refs+brdo+8x8dct -partitions parti4x4+parti8x8+partp4x4+partp8x8+partb8x8 -g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71"

Ffmpeg/x264 (profile Baseline, level 3.0) (iPhone)

options="-vcodec libx264 -b 512k -flags +loop+mv4 -cmp 256 -partitions +parti4x4+parti8x8+partp4x4+partp8x8+partb8x8 -me_method hex -subq 7 -trellis 1 -refs 5 -bf 0 -flags2 +mixed_refs -coder 0 -me_range 16 -g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -qmin 10 -qmax 51 -qdiff 4"

Windows BAT script

Encode XVID H.263 to H.264 video, copy source audio stream.

echo OFF cls

for %%f in (*.avi) do ( echo "%%~nf"

ffmpeg -i "%%~nf.avi" -vcodec libx264 -acodec copy -copyts -threads auto -y "%%~nf.mp4"

)

pause "Done."

Encoding for web

In the following replace x in -pass x with 1 and 2 for the first and second

pass/run respectively. We assume the original movie in.suffix has an aspect

ratio of 16/9 and a frame rate of 25 frames per second.

http://flowplayer.org/docs/encoding.html

WEBM encoding sample

ffmpeg -y -i in.suffix -filter:v scale=640:360 -vpre libvpx-720p -b:v 500k -r:v 25/1 -force_fps -c:a libvorbis -b:a 80k -pass 1 out.webm

MP4 encoding sample

ffmpeg -y -i in.suffix -filter:v scale=640:360 -pix_fmt yuv420p -c:v libx264 -preset:v slow -profile:v baseline -x264opts level=3.0:vbv-maxrate=10000:vbv-bufsize=10000:ref=1 -b:v 700k -r:v 25/1 -force_fps -movflags +faststart -c:a libfaac -b:a 80k -pass 1 out.mp4

How to Make MP4 Progressive with qtfaststart (python wrapper for `qt-faststart`)

Quicktime atom positioning in Python for fast streaming

https://github.com/danielgtaylor/qtfaststart

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